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java.lang.Objectorg.apache.commons.collections4.collection.AbstractCollectionDecorator<E>
org.apache.commons.collections4.collection.TransformedCollection<E>
org.apache.commons.collections4.bag.TransformedBag<E>
org.apache.commons.collections4.bag.TransformedSortedBag<E>
public class TransformedSortedBag<E>
Decorates another SortedBag
to transform objects that are added.
The add methods are affected by this class. Thus objects must be removed or searched for using their transformed form. For example, if the transformation converts Strings to Integers, you must use the Integer form to remove objects.
This class is Serializable from Commons Collections 3.1.
Field Summary |
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Fields inherited from class org.apache.commons.collections4.collection.TransformedCollection |
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transformer |
Constructor Summary | |
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protected |
TransformedSortedBag(SortedBag<E> bag,
Transformer<? super E,? extends E> transformer)
Constructor that wraps (not copies). |
Method Summary | ||
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Comparator<? super E> |
comparator()
Returns the comparator associated with this sorted set, or null if it uses its elements' natural ordering. |
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E |
first()
Returns the first (lowest) member. |
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protected SortedBag<E> |
getSortedBag()
Gets the decorated bag. |
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E |
last()
Returns the last (highest) member. |
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static
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transformedSortedBag(SortedBag<E> bag,
Transformer<? super E,? extends E> transformer)
Factory method to create a transforming sorted bag that will transform existing contents of the specified sorted bag. |
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static
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transformingSortedBag(SortedBag<E> bag,
Transformer<? super E,? extends E> transformer)
Factory method to create a transforming sorted bag. |
Methods inherited from class org.apache.commons.collections4.bag.TransformedBag |
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add, getBag, getCount, remove, transformedBag, transformingBag, uniqueSet |
Methods inherited from class org.apache.commons.collections4.collection.TransformedCollection |
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add, addAll, transform, transform, transformedCollection, transformingCollection |
Methods inherited from class org.apache.commons.collections4.collection.AbstractCollectionDecorator |
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clear, contains, containsAll, decorated, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, setCollection, size, toArray, toArray, toString |
Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Methods inherited from interface org.apache.commons.collections4.Bag |
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add, add, containsAll, getCount, iterator, remove, remove, removeAll, retainAll, size, uniqueSet |
Methods inherited from interface java.util.Collection |
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addAll, clear, contains, equals, hashCode, isEmpty, toArray, toArray |
Constructor Detail |
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protected TransformedSortedBag(SortedBag<E> bag, Transformer<? super E,? extends E> transformer)
If there are any elements already in the bag being decorated, they are NOT transformed.
bag
- the bag to decorate, must not be nulltransformer
- the transformer to use for conversion, must not be null
IllegalArgumentException
- if bag or transformer is nullMethod Detail |
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public static <E> TransformedSortedBag<E> transformingSortedBag(SortedBag<E> bag, Transformer<? super E,? extends E> transformer)
If there are any elements already in the bag being decorated, they
are NOT transformed. Contrast this with transformedSortedBag(SortedBag, Transformer)
.
E
- the type of the elements in the bagbag
- the bag to decorate, must not be nulltransformer
- the transformer to use for conversion, must not be null
IllegalArgumentException
- if bag or transformer is nullpublic static <E> TransformedSortedBag<E> transformedSortedBag(SortedBag<E> bag, Transformer<? super E,? extends E> transformer)
If there are any elements already in the bag being decorated, they
will be transformed by this method.
Contrast this with transformingSortedBag(SortedBag, Transformer)
.
E
- the type of the elements in the bagbag
- the bag to decorate, must not be nulltransformer
- the transformer to use for conversion, must not be null
IllegalArgumentException
- if bag or transformer is nullprotected SortedBag<E> getSortedBag()
public E first()
SortedBag
first
in interface SortedBag<E>
public E last()
SortedBag
last
in interface SortedBag<E>
public Comparator<? super E> comparator()
SortedBag
comparator
in interface SortedBag<E>
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